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#41
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In article ,
Douglas W. \"Popeye\" Frederick wrote: The radio would be for emergency communications anyway, to trucks in the -immediate- vicinity. The 4 "LADD" frequencies are used by the scale houses up there, as well. I'd offer a "metoo" for some advice you got from another poster... do NOT operate unlicensed. Don't even install a radio for which you don't have whatever license is required by the law in the areas in which you will be driving. Planning to use the "Officer, it's only for emergency use" response, when challenged, could be a very expensive tactic. You might find out, the hard way, that the local regulatory body takes a "possession is considered proof of intent to use" approach... even if you don't get hit with criminal charges or a civil forfeiture order, you could find that your radios are considered de facto "contraband" and are subject to being seized without warning. Here in the US, unlicensed operation could get you hit with equipment confiscation and a fine of many thousands of dollars. If you want to operate VHF, you should either get a proper license (e.g. for business-band frequencies) or stick to radios which have no legal requirement for a license. For example, here in the U.S., the MURS (multi-use radio service) is a collection of a few VHF frequencies (formerly licensed-business-band) which have been reassigned, and which can be used without a license as long as the radio you use is properly certificated for this purpose. I don't know if Canada has a MURS-equivalent, or if any of the truckers up there use it. Check the regulations before you buy. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#42
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"Dave Platt" wrote in message
... In article , Douglas W. \"Popeye\" Frederick wrote: The radio would be for emergency communications anyway, to trucks in the -immediate- vicinity. The 4 "LADD" frequencies are used by the scale houses up there, as well. I'd offer a "metoo" for some advice you got from another poster... do NOT operate unlicensed. Don't even install a radio for which you don't have whatever license is required by the law in the areas in which you will be driving. Thanks, but don't put too much stock in the idiot. I don't chat on the radio, regardless of how he tries to project his own activities on others, and from what I can discern so far, no license is required. I notice Richard the expert hasn't provided any such information, either. Possibly you're not aware of this, but unlicensed 10 meter radios with in-line amps are quite common in our trucks, and openly sold (although one major truckstop chain was, I believe, fined after several warnings) everywhere. I'll be happy to get a Canadian license if I can, but, I don't need or intend to use the licensed business frequencies. So, if as I understand, -that's- what I need a license for, I have no need for one. From the cite: "The Canadian equivalent of the FCC has a site in which it post Northwind Trucking as 165.840 MHZ.. Now in Canada they do not partition the VHF High band into commercial 151-162 and Government 162-174 like we do.. they are all over the place. Also They provide unlicensed LADD channels which are used alot by trucks Ladd 1 -154.1 Ladd 2 -158.94 Ladd 3- 154.325 and Ladd 4 173.370.. Again they are all over the place with stuff up there. Most of the action on Inuvik is on VHF. Nothing appears to be on 30-50 MHZ and the Hospital and Airport are using UHF." "They provide unlicensed LADD channels which are used alot by trucks" "They provide unlicensed LADD channels which are used alot by trucks" "They provide unlicensed LADD channels which are used alot by trucks" "They provide unlicensed LADD channels which are used alot by trucks" Where I drive is not where you live. http://picasaweb.google.com/Popeye87...43959490865794 That radio may mean the difference between freezing to death or not, or, literally, being eaten alive. "Officer, it's only for emergency use" is certainly preferable to that, and, grossly unlikely anyway. I've been through a score of vehicle inspections, with an illegal kicker in -plain sight-, and nobody gives a damn. They're a whole lot more concerned if we have brakes, and are sober. Contrary to Stupid Richard's rantings, I've never seen an FCC roadblock in 35 years of driving. Planning to use the "Officer, it's only for emergency use" response, when challenged, could be a very expensive tactic. You might find out, the hard way, that the local regulatory body takes a "possession is considered proof of intent to use" approach... even if you don't get hit with criminal charges or a civil forfeiture order, you could find that your radios are considered de facto "contraband" and are subject to being seized without warning. Here in the US, unlicensed operation could get you hit with equipment confiscation and a fine of many thousands of dollars. I'm sure that's true. If you want to operate VHF, you should either get a proper license (e.g. for business-band frequencies) or stick to radios which have no legal requirement for a license. For example, here in the U.S., the MURS (multi-use radio service) is a collection of a few VHF frequencies (formerly licensed-business-band) which have been reassigned, and which can be used without a license as long as the radio you use is properly certificated for this purpose. I don't know if Canada has a MURS-equivalent, or if any of the truckers up there use it. Check the regulations before you buy. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! -- Popeye "Best thing for him, really. His therapy was going nowhere," -Hannibal Lector. www.finalprotectivefire.com http://picasaweb.google.com/Popeye8762 |
#43
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![]() "Douglas W. "Popeye" Frederick" wrote in message m... Thanks, but don't put too much stock in the idiot. You sure put a lot of stock into the idiots Dave Ruff, Shawn and realitytrasher and the lies you post prove that asshole. So why are you calling anybody else an idiot when you put so much stock into Idiots just like Dave Ruff, Shawn realitytrasher and John/nightruanch do? More at: http://MTT.JusticeGoneWild.com |
#44
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"richard" wrote in message
... On Tue, 2 Dec 2008 14:51:28 -0500, "Douglas W. \"Popeye\" Frederick" wrote: "Zeke" wrote in message ... uuuuhhhh..... you're wrong as usual Bulli****. Top was career Military and got his commo expertise there. IIRC he's not a truck driver at all. Exactly, a matter of public record here that Richard has seen several times previously, and just forgot. Since this thread is going to groups who do not know me, I will try to clairify the lies here. snicker Here's Richard's esteemed military career (and how he was caught lying about it): http://bolo_bullis.tripod.com/ First, that is an exact copy of my dd214 acquired under the FOIA. It states I served. Unlike the lies that promulgate from it that says I did not. 2nd, why is the word before "discharge" blacked out? No one wonders "why". You've had three or four decades to get a new one, and you don't, and we -know- why. That was not done by the US goverment. It was done to make it look more damning. I never claimed to be anything I was not. I said I never got beyond boot camp and my highest rank was E1. The dd214 confirms that. I said I had enlisted for the ASA but never got involved with it. While others claimed I had claimed to be super secret spy or in special forces. Most of those lies were all created by "Just Taylor". What's amazing is that Richard and I were just discussing what a total, absolute and complete asshole he makes himself look like every time he tries to make himself look tough or smart at anyone's expense. I'm not saying I am smarter than many, in this thread I have been trying to point out that a lot of information given in this thread is totally wrong. As have others. Why don't you pick on them, asshole. But whether you're right or wrong, Richard, you can't state anything without a demeaning attack on others, usually embarrassingly incorrect, like you just did to Top. It's because of your angst and poor self-esteem, probably because of the inbreeding. And not man enough to correct yourself, from your flagrantly idiotic rant about Top being "billy bigrigger" (when he doesn't drive truck), a term you use frequently, that describes, well, you and Roger, more than anyone else here. If Top was wrong, you could have -easily- made your point without being abrasive, as others did, yet you attacked. Which is why -you're- always attacked. Because you DESERVE it, Richard. You actively -earn- the animosity of others, because you CAN'T KEEP YOUR ****ING MOUTH SHUT. Of course he can't hear a word of that, and immediately starts this. Richard, who is also a career pedophile and damn proud of it, has had, and will always have, the same problem, and that's that he just can't keep his festering gob shut. Pedophile being defined here No, Richard. No. Not "pedophile being defined" however it's convenient to you. Pedophile -has- a definition, and I've posted it many times, with your grossly inapropriate posting history. It's a matter of -permanent- record, Richard, and you can't spin puppy **** into butterscotch pudding. as a person who others claim is a pedophile because the damning word sticks to more feeble brains than any other word. No one has ever proven, in 10 years, that I am, have been, or currently am, a true pedophile. It's nothing more than ill words on a screen. What amazes me is that he's skunked a dozen usenet groups over the years, is internationally know as a scumbag, but still sees the world through his own rose colored glasses, like we might have forgotten his previous and extensive bombast and flummery. While ****heads like you keep wanting to let the world know about the past anyway they can. No proof, just a lot of hot air. I just state the facts, -with- the proof. You're the one with the revolving definitions and X-files DD214. You could clear that discharge up -anytime-, and choose to make excuses instead. We -know- why, Richard. Funny, or sad? Sad boy you are If I was any happier, I'd have to be -two- people. and you wore a uniform? Yeah, for an entire enlistment, imagine that. I know that's a foriegn concept to you. God help us all. Worry about yourself, dude. -- Popeye "Best thing for him, really. His therapy was going nowhere," -Hannibal Lector. www.finalprotectivefire.com http://picasaweb.google.com/Popeye8762 |
#46
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![]() "The Honorable Dr. Rocky Roads Presiding Judge" wrote in message ... "Douglas W. "Popeye" Frederick" wrote in message m... Thanks, but don't put too much stock in the idiot. You sure put a lot of stock into the idiots Dave Ruff, Shawn and realitytrasher and the lies you post prove that asshole. So why are you calling anybody else an idiot when you put so much stock into Idiots just like Dave Ruff, Shawn realitytrasher and John/nightruanch do? More at: http://MTT.DogwasherGoneWild.com Quit your crying and get over your loss coward, and just go and buy a new boyfriend doll.. |
#47
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richard wrote in
: On Mon, 1 Dec 2008 23:55:02 -0800, (Dave Platt) wrote: In article , Top wrote: Cophase being omindirectional? You need to do some more reading before you try to correct anything. The directionality of a broadside array (with the two radiators fed exactly in phase) depends very strongly on the separation between the two antennas. For separations of 1/4 wavelength or less, there's very little directionality - the pattern is very close to omnidirectional. Every dual-antenna truck setup I've seen has been a side-by-side mounting (e.g. one on the left mirror and one on the right), and the harness feeds them both in-phase. I've been assuming that this was what was being meant by "co-phase". If so, I stand by my statement that two CB antennas, fed in phase through a co-phase harness (i.e. no phase difference between the two), and separated by only 54 inches, produces a nearly-omnidirectional signal. The two antennas need to be further apart, before the pattern becomes significantly directional. Take a look at the NEC plots at http://www.cosjwt.com/index.php?a=20 to see... the 4.5-foot separation model produces a pattern which is almost circular. There is little gain towards the front and back, and very little loss off to the sides. These plots seem to jibe well with other references I've read (Terman, Kraus, and the graphs in the ARRL Antenna Book). The other alternative is an end-fire array, with the antennas fed signals of opposite phase - with these then there can be significant directionality even with close spacing of the antennas. In a truck-antenna system, this would require placing the antennas one in front of the other, separating them by several feet, and inverting the phase of the signal sent to one of the two antennas (perhaps by having the feed coax to one antenna be 1/2-wavelength longer than the other). You could get several dB of gain this way... but the close spacing will cause the antenna feedpoint impedance to drop a lot, and some form of matching network will certainly be required to keep the radio happy and develop maximum power from the transmitter. The two bottom plots on the site I mentioned above, show the effect of feeding the antennas with signals of different phase. In these examples, the pattern is being skewed off to one side - the difference in feedline length is converting the antenna from a broadside array to an end-fire array. With the right amount of phase shift, you end up with a cardioid pattern, with a broad lobe in one direction and a very deep null in the other. Ya gots to understand with whom you are trying to communicate. "Top" is the master know it all who has absolutely no background in electronics. He just drives a truck and thinks that gives him the knowledge. You've heard of "Billy Big Rigger"? You just met the dude. Top just goes along with what other truckers have said over the years. I have the actual working experience to back me up with. The only thing Top knows about CB is how to yack on it. Dave let's agree to our own experiences. Now to Richard You forgot who you are talking to again. Nothing unusual for you to get things wrong. I don't drive a truck unless you are talking about a pickup. As far as electronics backround I was in communications in the Army. I spent a good bit of time in the field in sitiuations where I had no backup so I had to know enough to make things work when they broke. I don't mean simple backpack radios either. Then there was the year I spent teaching radio wave propagation. Another year teaching programming small and meduim size telephone switches. In 2005 (well after I had retired) I spent the year assembling boards to build MRI machines. If you think I have no electronics knowledge then as usual you brain is no bigger than you little toe. |
#48
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richard wrote in
: On 2 Dec 2008 06:15:20 GMT, Top wrote: (Dave Platt) wrote in : In article , Douglas W. \"Popeye\" Frederick wrote: I suspect you'd get more bang for your buck by simply mounting a single antenna in a better location (e.g. roof mount) and paying attention to making the antenna's grounding to the chassis/groundplane as direct and solid as possible. Cophase being omindirectional? You need to do some more reading before you try to correct anything. IF the cophased antennas are less than 1/4 wave apart, there is virtually no change. I love it when you make an ass of yourself. |
#49
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Top wrote:
richard wrote: IF the cophased antennas are less than 1/4 wave apart, there is virtually no change. I love it when you make an ass of yourself. The ARRL Antenna Book says that with 1/8WL spacing, one can achieve 4.1 dB gain with a high F/B ratio. -- 73, Cecil http://www.w5dxp.com |
#50
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In article ,
Cecil Moore wrote: IF the cophased antennas are less than 1/4 wave apart, there is virtually no change. I love it when you make an ass of yourself. The ARRL Antenna Book says that with 1/8WL spacing, one can achieve 4.1 dB gain with a high F/B ratio. Cite, please? For which antenna configuration and phasing? I believe that the high (4.1 dB) figure you are quoting is for an end-fire array, with the two antennas being fed 180 degrees out of phase. Good gain, but somewhat tricky to feed and match due to the low feedpoint impedance and the potential for high losses. In a truck-antenna situation this would require placing the antennas in a front/back arrangement, not side-to-side. I'm told that this is rarely feasible. The usual two-antenna truck arrangement I've seen is with antennas side-to-side (one on each rear-view mirror), fed in phase. This is a broadside array, not an end-fire array. From all I can see (ARRL Antenna Book, Kraus, Terman), a two-radiator in-phase broadside array doesn't start to achieve significant gain (and pattern non-circularity) until you have at least 3/8 wavelength of separation between the radiators. A 1/4-wave separation yields only around 1.1 dB of gain, which (by my calculations) works out to about a 15% increase in useful range in the preferred direction. My book's at home, but my recollection is that you can't get 4.1 dB of gain out of a two-radiator in-phase broadside array until you have more than 1/2 wavelength of distance between the radiators. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
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